Home / 15,724.64-23,563.78-11,757.28

Finding the Fourth Proportional to 15,724.64, 23,563.78 and 11,757.28

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Solution

The fourth proportional to 15,724.64, 23,563.78 and 11,757.28 is: 17,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.64 : 23,563.78 = 11,757.28 : x
  2. Step 2: Convert to fraction form
    15,724.64/23,563.78 = 11,757.28/x
  3. Step 3: Cross multiply
    15,724.64x = 23,563.78 × 11,757.28
  4. Step 4: Simplify right side
    15,724.64x = 277,045,959.32
  5. Step 5: Solve for x
    x = 277,045,959.32/15,724.64
  6. Step 6: Final answer
    x = 17,618.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.